73218036 has 24 divisors (see below), whose sum is σ = 171614464. Its totient is φ = 24295680.

The previous prime is 73218029. The next prime is 73218059. The reversal of 73218036 is 63081237.

It is a junction number, because it is equal to n+sod(n) for n = 73217994 and 73218012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11005 + ... + 16356.

Almost surely, 2^73218036 is an apocalyptic number.

It is an amenable number.

73218036 is an abundant number, since it is smaller than the sum of its proper divisors (98396428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73218036 is a wasteful number, since it uses less digits than its factorization.

73218036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27591 (or 27589 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 73218036 is about 8556.7538237348. The cubic root of 73218036 is about 418.3496003085.

The spelling of 73218036 in words is "seventy-three million, two hundred eighteen thousand, thirty-six".